Starting device for explosion-engines.



H. E. GOFFIN. STARTING DEVICE FOR EXPLOSION ENGINES.

APPLICATION FILED APR. 7, 1911.

Patented May 6, 1913.

HOV/ARE E. ODE FIN, OF DETROIT, MICHIGAN.

STARTING DEVICE FDR EXPLOSION-ENGINES.

Patented May 6, 1 .913.

Application filed April 7, 1911. Serial No. 619,592.

Specification of Letters Patent.

15 struction of To ail whom 2'15 may concern:

Be it known that I, HOWARD E. Gorrin, a citizen of the United States of America, residing at Detroit, in the county or Wayne 5 and State of Michigan, have invented certain new and useful Improvements in Starting Devices for Explosion-Engines, of which the following is a specification, reference being had therein to the accompanying drawings.

distributing the stored charge to the several cylinders of the engine to etlect the starting". The invention further consists in various details oi construction as hereinafter set forth.

o In the drawings,-Figure 1 is a sectional perspective view of an explosion engine em- /bodying my invention; Fig. 2 is a sectional side elevation thereof.

A are the cylinders of an explosion engine, B is a head for said cylinders, C is a rotary valve preferably of cylindrical form and engaging a corresponding seat or case D in the head B. The valveJC controls both the inlet and exhaust passages to and from y the engine cylinder, and as shown the inlet passage E is arranged on one side of the head 13 and the exhaust passage F on-the opposite side thereof. 'lhese passages communieate with ports G and ii in the valve chest preferably arranged in the path of a common port I in the valve so as to be reqistercd alternatively therewith. Upon the opposite side of the valve ease D are ports J and K leading to the cylinder and con nected through the valve port I respectively with the inlet passage E and exhaust passage F.

With the arrangement as thus far described. the valve C is driven through a suitable drive train (not shown) so as to open the inlet and exhaust passages of the several cylinders in properly'timed relation. This valve I also employ for controlling the engine starting 'devn'e, the construction being i L and L are passages in the headDupon opposite sides of the valve case D and which are connected by conduits M and M With a storage tank N. These passages L and L communicate witlrports O and O in the valve case which are arranged out of the path of rotation of. the valve port I as for instance in the space intermediate the ports l of adjacent cylinders.

P and P are segmental slots or recesses formed in the valve C and adapted in the ro tation thereof to register with the ports 0 and O to couple the same with the ports J and K leading to the cylinder. These ports P and l are so positioned and proportioned that during one or more cxpl.osionstrokes in each cycle of the engine the port .l Will be coupled to the port 0', establishing comlllllIllCflilOll between the cylinder and tank N through the intermediate passage L and conduit M and permitting a portion of the compressed gases of explosion to pass in and be stored in said tanlc The port P for each cylinder will also be registered with the ports 0 and K during the initial explosion stroke, permitting the passage of compressed gases in the tank 1? through the conduits M, passage L and ports 0, P and K to the cylinder. There is however, a valve Q in the conduit M. which is normally closed and theretore,- prevents, the passage of gas there- 'through as just described, also preferably one or more check valves R.

Whenever the engine is in operation a supplv of compressed gas will be stored in the tank N for subsequent use in starting and escape of this gas is prevented by the closure of the valve Q. To startthe engine it is merely necessary to open the valve Q, which will admit the gas under pressure to the passage L and to a port P, one of which will always be in registration therewith, and thence to the cylinder. This will actuate the piston with SUillCiQHt force to cause the compression of an explosive charge in another cylinder and the subsequent explosion thereof.

. in order to arrange the ports controlling the storage and distribution of compressed gases for starting so as to avoid interference with the normal function of the engine, these ports J and K are prefc'ably arranged intermediate the ends of the ports l. The ports J and K are of sutlicient as follows l length to register with he ports I and P,

and the latter are so positioned'in the circumference of the valve cylinder as to secure the'proper timing.

What I claim as my invention is? 1. In an explosion engine, the combination with a rotary valve having a port extending therethrough utilized in the normal operation of the engine, of a port out of the path of movement of said first mentioned port, a valve case having a port leading to the engine cylinder with which both of said valve ports register, and a port communicating'with a store e tank adapted to be connected to said cy inder portby said see- I 1 'ondjmentioned valve port.

2. In an explosion engine, the combination of-a rotary valve having a port therethrough utilized in the normal operation of the encylinders and having ports t gine, and a recess port out of the path of movement of said first mentioned port, a valve case havin a port leading to the engine cylinder an with which both of said valve ports register, and a port communicat ins, with a reservoir for com ressed gases positioned to be coupled by said second mentioned valve port with the engine cylinder. 3. Ina multicylinder explosion on us, a rotary valve for controlling a lura ity of lierethrough utilized in the normal operation of the en- 'ne by the respective cylinders, and a port Intermediate said first mentioned ports, a valve case having a cylinder connecting port adapted to register with said last mentioned valve port and-one of the first mentioned ports, and connecting with a storage for compressed.gases,coupled by said last mentioned valve port with said cylinder port.

l. In a multi-cylinder'explosion engine, a cylindrical valve and corresponding valve case having successively re istering ports utilized. by the several cylinders of the engine in the normal 0 eration thereof, recess ports in the valve ad acent to said first mentioned valve ports and intermediate the same, and ports out of the path of'movement of said first mentioned valve ports connected with the storage for compressed gases and adapted to be coupled by said recessed valve ports with the ports of the respective cylinders. v

5. In an'explosion engine, the combination with a rotary valve havmg a port utilized in the normal operation of the engine, a second port out of the path of movement of said first mentioned port, a cylinder port I with which both' of sald valve ports'regis- .ter, and a port communicatlng with a storage for compressed gases, positioned to be connected to said cylinder port by said second mentioned valve port.

6.. In an explosion engine, thecombina tion with a cylinder provided with a port utilized in the normal operation of the engine and having a second port connected to a storage for compressed gases for starting, a rotary valve having a port utilized 1n the normal operation of the engineand adapted to register with the first-mentioned cy inder .port and having a second po'rt adapted to connect said cylinder ports.

In testimony whereof I afix my signature in presence of two witnesses.

. HOWARD E. COFFIN, Witnesses:

JAMES P. BARRY, MARVIN B.. FAY. 

